Here are several pictures of some of my tiniest steam engines. The first engine was built to conform to the Sherline contest many years ago. It was based on the Stuart #4. The horizontal and twin were also based on Stuart engines.
gbritnell
Those are really impressive! Now for a dumb question........do they actually run and how did you manage working in that tiny scale?
Truely amazing work there
HI Larry,
I will post videos in the video area.
gbritnell
Very impressive

You would never guess they were miniatures from the 3rd picture